Removal and transformation of organic matters in domestic wastewater during lab-scale chemically enhanced primary treatment and a trickling filter treatment
Date of Issue2013
School of Civil and Environmental Engineering
To find a simple and economical way for treating the domestic wastewater in small counties and towns, a process combining chemically enhanced primary treatment and a trickling filter (CEPT-TF, representing the physical and biological effects) was constructed and operated in laboratory conditions. The characteristic behaviors of dissolved organic matter in raw wastewater and effluents were examined during steady-state operation. Experimental results showed that the process of CEPT and TF in series was beneficial for the removal of hydrophobic and hydrophilic organics. Specially, the hydrophobic and aromatic materials could be preferentially removed in the CEPT unit, and the hydrophilic fraction in the TF. Structural changes of the organic fractions during the operation of the different units were also characterized via spectrum analysis.
DRNTU::Engineering::Environmental engineering::Water treatment
Journal of environmental sciences
© 2013 Editorial Department of Journal of Environmental Sciences. This paper was published in Journal of Environmental Sciences and is made available as an electronic reprint (preprint) with permission of Editorial Department of Journal of Environmental Sciences. The paper can be found at the following official DOI: [http://dx.doi.org/10.1016/S1001-0742(12)60039-4]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.